Drinking mug



FIG. 1 is a perspective view of a drinking mug showing my new design.

FIG. 2 is a back view thereof.

FIG. 3 is a front view thereof.

FIG. 4 is a side view thereof taken from the left side of FIG. 3.

FIG. 5 is a side view thereof taken from the right side of FIG. 3.

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof. 

The ornamental design for the drinking mug, as shown and described. 